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Sony's CDX-GT660UP CD receiver puts an impressive set of visual and audio delights at your fingertips. It'll match its display and button colors to your dash or the beat of your music, and gives you a variety of musical options — including in-dash control of PANDORA® Internet radio.

Tap into online music
If you're a fan of PANDORA®, you don't have to be told how cool it is to enjoy the music you love wherever there's an Internet connection. Connect your iPhone to the front USB input, and you'll be able to control PANDORA® from this Sony. Listen, rate, create — you'll have complete control.

You'll enjoy easy access to your iPod® or iPhone's music library, with Quick BrowZer, Jump, Zappin', and other Sony tools on hand to help you find the tunes you want, right away.

Dynamic Color Illuminator
It's fun to match the color of your new receiver to your dash lighting, but Sony's Dynamic Color Illuminator goes one better. Its Sound Synchronization feature changes the display colors to the beat of your music. It's a cool way to spice up your late-night cruising.

Awesome audio controls
Sony's Advanced Sound Engine offers sound quality that's several notches above most factory radios, with excellent dynamic range, stereo separation, and fidelity. You'll also find some nice touches like the Automatic Level Optimizer, which continually balances the output of your sources so the volume stays even from song to song.

The EQ7 7-band equalizer gives you lots of options for adjusting the sound to match your car. Sony's DM+ Advanced circuitry restores the details that are lost when you compress your digital music, so you enjoy the best possible sound from your MP3, WMA, or AAC files. And you can sit in the perfect stereo "sweet spot" by using the Listening Position time alignment tool.

Want to keep your car's steering wheel audio controls?
In most vehicles, you can use an adapter (not included) to connect your vehicle's steering wheel controls to this Sony stereo. Connect a few wires, then program the adapter for your particular car and the Sony, and you'll retain the convenience of your steering wheel controls.

Note: If you're going to use your iPod with this receiver, be sure to check "Details" for specific iPod model compatibility with this receiver or its optional iPod adapter.

Other features and specs:

Why replace your factory radio?

Two good reasons - sound quality and cool features. A new car stereo offers power that's superior to most factory radios, along with more sophisticated tone controls. And most car stereos offer built-in or optional features that add safety and fun to life in your car, including inputs for your iPod or MP3 player, Bluetooth connectivity for hands-free cell phone calls, satellite radio or HD Radio reception, and connections for building an audio system in your car.

Product Research

Display Features

Flip-Down/Detachable Face: The CDX-GT660UP features a manual
fold-down face which provides a larger display & greater protection for the
player's CD slot & your CD discs. In addition, the unit features a detachable
face for theft prevention. A face-fixing screw is supplied for making the face
non-detachable, if desired. The unit's fold-down face requires 1.75" of open
space in front of it to fold-down properly. No face case is included with
this unit. An optional soft face case (142DFC1X,
sold separately) can be purchased for this unit.

Caution Alarm: If you turn the ignition switch to the Off
position without detaching the front-panel, the caution alarm will sound for a
few seconds. The alarm will only sound if the built-in amplifier is used.

2-Line LCD Display: The Sony Xplod CDX-GT660UP features a
2-line LCD display which lets you view source name, station information, track
number with playback time, artist/song titles, time, menu, and clock. You can
adjust the display's contrast in 7 steps.

Day/Night Color Mode: You can register a
customize color for the unit's display and buttons for day & night time
driving.

Sound Synchronization: The color changes according to
synchronization of playing music. When you select a preset pattern sound
synchronization becomes effective.

White Menu: You can display the menu more
clearly (White text) without concern for the unit's other color settings.

Start White: When you power-on the head unit, the color
of the unit's display and buttons turn white and then the color changes to
your chosen customize color. You can enjoy this effect whenever the source
is turned on.

Motion Display: This feature
shows moving patterns and a spectrum analyzer on the display when turned on.

Auto Scroll: This feature
allows long displayed items to scroll automatically across the display when the
track is changed on a disc.

Display Illumination/Clock Display: Pressing the Source/Off
button once will switch sources. Pressing and holding the Source/Off button for
one second will turn off audio output, but the clock display and button
illumination remain on. To turn the unit off completely, you must press and hold
the Source/Off button for two seconds.

Dimmer: To change the brightness of the display you can set
the CDX-GT660UP to one of three dimmer modes - Dimmer Auto (dims the display
automatically when you turn your vehicle's lights on), Dimmer Off (deactivates
the dimmer), and Dimmer On (display always dim).

Auto Off: When installing in a vehicle without an accessory power wire at the
radio location, you can set the unit to turn off all lighting a
set amount of time after you turn the power off. The Auto Off feature can be set to 30 seconds, 30 minutes,
60 minutes, or No.

Demo Mode: The head unit's demo mode can be turned On or Off.

USB/Aux Connectivity

USB Port: The receiver's front-panel Type-A USB port can be
used for plugging in a (MSC) Mass Storage Class or MTP (Media Transfer Protocol)
type USB device. The head unit can play music files stored on the USB device in
MP3, WMA, or AAC formats (up to 320 kbps). The head unit can recognize up to 128
folders with 500 tracks each when connected to a USB Mass Storage Device. The
CDX-GT660UP offers the following USB search, playback, and display functions.

Search Modes:

Quick-BrowZer: allows you to search for a track on
a connected USB device easily by category (Genre, Artist, Album, or
Playlist)

Jump Mode: gets you closer to the song you want by
allowing you to fast forward through a music category in 10%
increments

Zappin: play music (files or folders) in 6, 15, or
30-second clips until you find the song you are looking for on your
connected USB device

Content Transfer/SensMe Online Software: The Content
Transfer/SensMe online software can organize your music into playlists that
perfectly match your mood, scene, and location, making it easier to choose the
music that fits the moment. SensMe actually looks at the beats-per-minute and
automatically groups your music (stored on your windows-based computer) into
channels, making listening and managing all of your content even simpler. Once
you have downloaded & used the SensMe software to organize your PC's music, you
can then transfer that music to your USB device (Not iPod/iPhone) for playback on the Sony head
unit. You can select & play a channel that fits your mood from the following
categories.

Time of Day: Tracks are recommended for each time of
day. Choose from Morning, Daytime, Evening, Night, or Midnight.

Music Type: Plays tracks according to the music type.
Choose from Energetic, Relax, Upbeat, Mellow, Lounge, Emotional, Dance, and
Extreme.

Note: Download of the Content Transfer/SensMe online
software to your windows-based computer is required to enable the SensMe
function on this head unit. The software must be downloaded to your PC &
then music content must be transferred to a USB (MSC) device. The SensMe
software is not compatible with iPod or iPhone.

System Requirements: Your
Windows-based computer must meet the following system requirements.

Front Panel Auxiliary Input: A front panel stereo 3.5mm
mini-jack is provided to allow the connection of a portable audio source. Just
connect your portable digital music player to this unit, and you can listen to
the audio from the portable player through the speakers in your mobile audio
system. The volume level of the auxiliary input is adjustable from -8 to +18 dB
to compensate for any difference between the unit and your portable device.

iPod/iPhone Control

USB 1-Wire iPod/iPhone Control: The GT660UP's front-panel USB port allows you to connect your iPod/iPhone via a single
cable (iPod dock connector-to-USB cable; not included with the head unit). This USB 1-Wire for iPod/iPhone
connection lets you
directly connect, charge, & control select iPod/iPhones via the USB jack on
the front of the unit, as well as view metadata like song title & artist name on
the front display.

Bypass iPod DAC: The USB connection allows your
iPod/iPhone's stored music to be loaded instantly to the head unit and sound
quality to be maximized through the head unit's 24-bit D/A converter (bypassing
iPod/iPhone DAC), allowing for a Signal-to-Noise ratio up to 120dB.

Information Display: The head unit will display your
iPod/iPhone's music file information, including - Track #, Elapsed playing
time, Song title, Artist name, and Album label.

Music Navigation: You can choose to control the iPod/iPhone
from the head unit or from your iPod/iPhone's clickwheel or touchscreen.

Quick-BrowZer: the Quick-BrowZer feature allows you
to browse your iPod/iPhone's music library by Artist, Album, Song,
Genre, Playlist, or Podcast

Alphabetical Search: search within a specific Quick-BrowZer
category or All tracks alphabetically (A-Z)

Zappin: with the Zappin feature, you can play music
tracks & albums in 6, 15, or 30-second clips until you find the song you are looking
for on your connected iPod/iPhone

Charging: While connected and the ignition switch is set to
ACC or ON, the head unit's USB connection will power and charge your
iPod/iPhone. If your iPod/iPhone has no initial battery charge,
then this unit will not recognize it.

Note: If you have an iPod nano (7th gen), iPod touch
(5th gen), or iPhone 5; use the Lighting-to-USB cable that came with your
Apple device to connect to the head unit.

Pandora App: Pandora is the leading Internet Radio music
service in the United States, giving people music they love anytime, anywhere,
through personalized radio stations. The Sony CDX-GT660UP provides complete
access to your Pandora account using your iPhone, via the head unit's
front-panel USB port. To access Pandora you must have an Apple iPhone (iOS3 or later) with the latest version of the Pandora application from Apple's
iTunes App Store. Your iPhone will need an active Data Plan account with
connection to the Internet via 3G, EDGE, or WiFi. You will also need a Pandora
music service account. The CDX-GT660UP will provide control over the Pandora
music service & display Artist, Album, & Song information.

Station List: You can select Pandora stations from your Station
List by date or alphabetically (A-Z).

QuickMix: QuickMix allows you to listen to songs played on one or
more Pandora stations in your Station List randomly. You will need to edit
your QuickMix station selections on the iPhone before connection.

Skip Songs: You can skip song tracks within a station. You cannot
skip back to a previous song. Pandora limits the number of skips allowed.

Thumbs Up/Down: You can give songs a thumbs up or thumbs down to
help Pandora personalize stations to suit your preferences.

Bookmarking: The song or artist currently being played can
be bookmarked & stored in your Pandora account.

Note: Access to the Pandora service will depend on the
availability of a cellular and/or WiFi network for purposes of allowing your
iPhone to connect to the Internet. Pandora is not supported in Canada & only
available in the United States.

iPod/iPhone Compatibility Chart: The Sony CDX-GT660UP is "Made for iPod/iPhone"
compatible and supports the following iPod/iPhone model features (as of 10/8/2012):

Apple Device

Generation

Tested Version

Media Type

Control Type

Display Type

Charge

Audio

Video

Head Unit

iPod

Pandora App

Artist/Song Text

Track Info

iPhone

2G

3.1.3

Y

N

Y

Y

N

Y

Y

Y

3G

4.2.1

Y

N

Y

Y

N

Y

Y

Y

3GS

5.1.1

Y

N

Y

Y

Y

Y

Y

Y

4

7.0

Y

N

Y

Y

Y

Y

Y

Y

4S

7.0

Y

N

Y

Y

Y

Y

Y

Y

5

7.0

Y

N

Y

Y

Y

Y

Y

Y

5C

7.0

Y

N

Y

Y

Y

Y

Y

Y

5S

7.0

Y

N

Y

Y

Y

Y

Y

Y

touch

1st

2.2.1

Y

N

Y

Y

N

Y

Y

Y

2nd

4.2.1

Y

N

Y

Y

N

Y

Y

Y

3rd

5.1.1

Y

N

Y

Y

N

Y

Y

Y

4th

6.1.3

Y

N

Y

Y

N

Y

Y

Y

5th

7.0

Y

N

Y

Y

N

Y

Y

Y

nano

1st

1.3.1

Y

N

Y

N

N

Y

Y

Y

2nd

1.1.3

Y

N

Y

Y

N

Y

Y

Y

3rd

1.1.3

Y

N

Y

Y

N

Y

Y

Y

4th

1.0.4

Y

N

Y

Y

N

Y

Y

Y

5th

1.0.2

Y

N

Y

Y

N

Y

Y

Y

6th

1.2 PC

Y

N

Y

Y

N

Y

Y

Y

7th

1.02PC

Y

N

Y

Y

N

Y

Y

Y

classic

80GB

1.1.2

Y

N

Y

Y

N

Y

Y

Y

120GB

2.0.1

Y

N

Y

Y

N

Y

Y

Y

160GB

2.0.4

Y

N

Y

Y

N

Y

Y

Y

video

5th

1.3

Y

N

Y

N

N

Y

Y

Y

iPad

1

5.1.1

Y

N

Y

Y

Y

Y

Y

N

2

7.0

Y

N

Y

Y

Y

Y

Y

N

3

7.0

Y

N

Y

Y

Y

Y

Y

N

4

7.0

Y

N

Y

Y

Y

Y

Y

N

mini

7.0

Y

N

Y

Y

Y

Y

Y

Y

Note: Apple iPod/iPhone software updates may change
functionality results. If you download a newer software version, you may
need to reset the head unit and your iPod/iPhone to regain functionality. If
this doesn't work, you may need to wait until a newer software update is
available.

Disc Playback

Disc Compatibility: The unit features a single disc player
that will playback CD-Audio, CD-Text, and finalized CD-R/CD-RW audio discs.

MP3/WMA/AAC Playback: The Sony CDX-GT660UP allows you to
playback CD-Rs or CD-RWs loaded with MP3, WMA, or AAC songs (up to 320 kbps)
recorded in ISO 9660 level 1 or 2, Joliet/Romeo, or Multi-Session. The
CDX-GT660UP can support up 150 folders, and a combined 300 folders & files on
a disc. The head unit will also display song information for MP3, WMA, and AAC
music files (Joliet: up to 32 characters, Romeo: up to 64 characters).

Note: Not all
MP3, WMA, AAC files may playback due to file variations. Copyright protected
ACC-LC files cannot be played back.

Compressed Audio Display Information: The CD receiver can
display the following CD-TEXT or ID3/WMA-tag information - Track number, Elapsed
Playing Time, Song Title, Artist Name, or Album Label.

Quick-BrowZer: The unit's Quick-BrowZer feature allow you to
search for a track on a CD, iPod, or from your connected USB Mass Storage Device easily
by category (Genre, Artist, Album, or Playlist).

Jump Mode: Jump
Mode gets you closer to the song you want by allowing you to fast forward
through a music category in 10% increments.

Zappin: With the Zappin feature, you can play music (files
or folders) in 6, 15,
or 30-second clips until you find the song you are looking for on your CD or
connected USB device.

Off Insert/Eject: A CD disc can be inserted or ejected with
the power off. The head unit will automatically begin disc
playback, when a disc is inserted with the receiver set to a different source or
powered off.

Auto Reload: The CD player will automatically reinsert the disc if it's
ejected, but not removed for 20 seconds or more.

Mounting Angle:
For proper CD playback, this unit must be mounted between 0° (horizontal) and 45°.

Radio Functions

RDS: The Radio Data System (RDS) feature displays radio
broadcast information such as artist & track information when listening to
compatible AM/FM stations.

Preset Tuning: The radio features 5 memory bands to store
and receive AM/FM stations. You can store up to 6 presets each in FM1, FM2, FM3,
AM1 and AM2 (total: 18 FM/12 AM). Preset tuning can be done manually or
automatically.

Best Tuning Memory (BTM): This feature selects stations
with the best signals within the selected band and stores them in order of
their frequency. You can select from FM1, FM2, FM3, AM1, and AM2.

Manual Tuning: You can manually tune and find your
favorite radio stations one by one for FM1, FM2, FM3, AM1, and AM2.

Auto Tuning: You can use the seek button to help you search
quickly through the available stations and then choose your own presets from
these available stations.

Local Seek Mode: In the Local Seek Mode, the unit will only
tune in stations with very strong signals during Seek tuning.

SiriusXM Ready: The Sony CDX-GT660UP comes ready for SiriusXM
programming with access to XM and Sirius Satellite Radio stations. Thanks to its
proprietary SiriusXM Connect port, you can add the optional
SXV200V1 SiriusXM Connect tuner and receive more than 150 channels of
exclusive programming directly from SiriusXM, via the "SiriusXM
All Access" package (subscription required). Visit
SiriusXM.com
for a complete list of subscription options and channel guide. Additional features
of the SXV200 SiriusXM Connect tuner include:

Channel list displays a list of all available channels

Category Search searches for channels in a certain category

Displayed Information such as Channel Name, Artist Name, & Song Title
can be viewed on the head unit's LCD

Up to 18 SiriusXM Satellite Radio station presets

Channels containing unsuitable content for children can be blocked

Note: A separate SiriusXM Satellite Radio subscription
is required (operates on the XM Network). However, you can easily add this
SiriusXM tuner to an existing Sirius or XM account for a Multi-Radio
Discount Plan.

Audio Section

True Fidelity Sound Construction: The Sony CDX-GT660UP FM/AM compact disc player features a newly developed
sound processor for less distortion, an S-MOSFET IC for smooth signal
transmission, and a large-sized capacitor for deep bass sound.

CEA2006 Compliant Amplifier: The power specifications for
the Sony CDX-GT660UP are compliant with the CEA2006 Mobile Amplifier Power
Testing and Measurement standards from the Consumer Electronics Association (CEA).
These standards were developed as a way to equitably compare power specs from
model to model and between manufacturers. The power output specs for the
CDX-GT660UP are as follows:

Subwoofer Controls: The unit's subwoofer preamp output is
non-fading. The subwoofer preamp output features a low pass filter with a selectable
cut-off frequency of 50Hz, 60Hz, 80Hz, 100Hz, 120Hz, or
Off. You can also adjust the slope (1/2/3) of the low-pass crossover. You can
even adjust
the subwoofer preamp output's volume level independently from the head unit's
volume control from -10 to +10 in 1dB increments. In addition, you can select
the phase of the subwoofer output from Normal or Reverse.

High-Pass Filter: The front & rear speaker outputs offer a
selectable high-pass crossover frequency of 50Hz, 60Hz, 80Hz, 100Hz, 120Hz, or
Off. You can also adjust the slope (1/2/3) of the high-pass crossover.

Listening Position: This unit can change the
localization of sound by delaying the sound output from each speaker to suit
your position, and simulate a natural sound field with the feeling of being
in the center of it wherever you sit in the car. You can choose from Front
Right, Front Left, Front Center, or Off. You can also set the subwoofer distance of the subwoofer
to Near, Normal, or Far

RBE (Rear Bass Enhancer): RBE enhances the bass sound
by applying the low-pass filter setting to the rear speakers. This function
allows the rear speakers to work as a subwoofer even if there is no
subwoofer connected.

Beep Tone: The in-dash head unit provides an audible beep to
confirm button operation. This function can be turned On or Off.

Remote Control

Wireless Remote Control: The
head unit comes supplied with an IR wireless remote control (RM-X211) for easy
operation. The included wireless remote allows you to control the basic
functions of the Sony head unit while keeping your eyes on the road.

Steering Wheel Remote Compatibility: The head unit features
an OEM steering wheel remote control input on the rear of the unit that lets you
keep your vehicle's factory radio steering wheel remote controls when used with
an optional
steering wheel audio control adapter (sold separately). Please consult
Crutchfield's
Outfit My Car to see if your vehicle is compatible.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to
find elsewhere. That's because we have our own in-house Product Research
team. They verify what’s in the box, check the owner's manual, and record
dimensions, features and specs. We stay on top of new products and technologies
to help people make informed choices.

* Agree to Terms
By checking this box you agree your review becomes the property of Crutchfield,
that you are over 18 years of age, that you own or have owned this product, and
that you are located within the United States or its territories. Please see our
Review Guidelines for more information. We reserve the right (but are not
obligated to) review all submissions and edit or remove any review in any manner
which we deem necessary. Your review should be posted within seven days.

Good Value!

Good receiver especially at the sale price I received. Love everything about it that I have tried out. Can be a little complicated at times, but that makes for good options if you're patient. I have no real complaints and highly recommend it as a good value!

Pros:Great radio reception esp. in low quality areas, Sony quality, lots of options for using the color and easy to use USB and AUX.

Cons:Lots of options = fiddle with it a lot on the road. That could just be me. Also I had minor difficulty reattaching the faceplate the first few times.

Sony CDX-GT660UP Cd Player

This receiver has a nice, bright display. The pre-set EQ's give you a nice range of sound choices, but also allows for custom tuning. This particular installation happens to be connected to the stock vehicle amplifier, and sometimes there is no sound output when the unit is clearly otherwise working. I do enjoy the 2 front inputs for audio sources, and the 3 sets of 4-volt pre-outs make it very expandable for external amplifiers that I may add in the future. Overall a pretty decent unit for the price.

Pros:Inputs, pre-outs, great display, good sound field choices from EQ settings

Cons:Navigating the menus is more difficult than need be, sometimes audio out to stock amp does not work

Good radio, but if you want satellite, be aware...

I just finished installing this radio in my 2005 Subaru Outback wagon. Disassembling the car's instrument cluster is a pain, especially because of the climate control cable, but if you have patience and smallish hands, it's works out fine.

The instructions for the radio are reasonably clear, and the wiring harness provided by Crutchfield worked perfectly. In the "Setup" menu for the radio, there are some options that only work if the radio is powered off - mainly the "Caut Alm" caution alarm setting, which emits an annoying beep every time you turn the car off. You can turn the alarm off, but only if the radio is off. Weird.

Apart from that, the sound quality is fine. I'm not an afficianado, so it's definitely good enough for me.

But: my old car radio was a Sirius unit, and I had the Sirius subscription. When I got this new radio, I also got the SXV200V1 SiriusXM tuner, because my old tuner, which was OLD, wasn't compatible with the new radio. As far as I can tell, the SXV200V1 is the only satellite tuner that is compatible with this radio. The thing that isn't clear at all is that, if you already have a *Sirius* subscription, you have to switch over to an *XM* subscription with this tuner. And that means your channel lineup with change. I had "Sirius Select" - I had to move over to "XM Select" - same price, mostly the same channels, EXCEPT that XM Select doesn't include Howard Stern. If you want that, you have to upgrade to XM Premier for an extra $3.50/month.

amazing product

Well this was my first car stereo system I have installed. The installation was very easy to do and took about a day to hook up. The radio came with every thing I needed to install. The radio and speaker I purchased about two months ago have the best sound quality you can get for the money. I would recommend this radio to any one who wants a quality stereo for their car or truck

Love the options!

Written By Jesse S., Spokane, WA on Sunday, May 12, 2013

"Coolness Factor"

Build Quality

Ease of Use

Sound Quality

Value

Over all I love this stereo in my 2000 Focus ZX3 with after market speakers and infinity basslink 10" sub. Ive owned it for over a year. easy to use, easy buttons to touch and turn, lots of options for a fairly advanced audio set up. I will buy this for my second car (Pontiac Grand Prix)

Pros:-Turn your rear speakers into "subs"
-LPF and HPF slopes and multiple freq.
-7 band EQ
-Lots of colors to match your mood or car color
-browse iPod with stereo or the device, you choose
-select your location in the car for a better soundstage effect.

Cons:I've noticed a couple glitches or "problems" foremost is when my car is only running off battery (ignition mode) and the volume is up pretty loud the stereo will power off and start back up. It's like it's got a circuit breaker built in. It's frustrating because sometimes at parties I don't want exhaust fumes.

Good value at a reasonable price

One of the things that drew me to this unit was the 7-band EQ. Not many budget units have that. I like being able to customize the sound profile. I just wish it had more than one custom profile slot. The multitude of colors is cool too. Navigating to find music stored on the ipod took a little getting used to. And the DM+ feature that enhances highly compressed music has it's pros and cons. It can make some tracks sound fuller and richer and some it makes them sound tinny. Overall, though I am pleased with this purchase.

Pros:Good sound quality and features in a budget unit.

Cons:Not as easy to navigate to the music you want to find as in a double DIN touch screen unit.

Pretty Decent Product

Written By Anonymous, Cleveland on Thursday, April 25, 2013

"Coolness Factor"

Build Quality

Ease of Use

Sound Quality

Value

Way better than my (Mazda) factory system was, but it's still probably outdated, by now. There's no bluetooth phone or streaming. Navigation of the USB devices (thumb-drive, iPod and iPhone) is nearly impossible, especially while driving. Forget about searching. And the shuffle only works in one folder which is a bummer. It has some pretty sweet programming to make the most of the factory speakers. Sounds good.

Pros:Love the simulated subwoofer in the rear speakers. Charges devices hooked up to USB, and plays music from them.

Cons:No bluetooth, no phone connectivity, USB cord comes out of the front, tough to navigate music on USB devices (especially when driving)

Pretty good - not great

Overall this is pretty good. Sounds good, and feature set is complete. Main complaints are related to user interface and equalizer (the custom 7-band EQ was the main reason I bought this unit). The EQ turnover points are not displayed anywhere (you just have to know what they are from the manual) which is annoying, and the EQ adjustment is only +/-6dB each band; this can be problematic when trying to correct for larger problems. I'm not crazy about the selection of turnover points on the equalizer; In the lower octaves the turnover points jump from 160Hz to 400Hz, leaving out the critical 250 - 300Hz area where most annoying car resonances seem to fall.

The display is especially ugly, and the text characters are large and blocky (and all upper-case), so unable to display much info without scrolling (a pioneer that a put in another of our cars is much more attractive, and informative).

I don't really like the fact that you have to fold down the hinged front panel to insert/eject a CD; this means you have to disconnect your front-panel USB device to put a CD in - kind of a pain when you're trying to drive.

Unit sounds good, and aside from these issues it provides pretty good value for money.

Pros:Sounds good, decent value for money, good feature set

Cons:Hard to use, lousy ergonomics, must fold down front panel to insert/eject CD, Equalizer interface could use some work.

Great Deck

I've bought this deck for the two line display, a built in clock, and the color changing display. I have not been disappointed with it's performance in any way. Installation was a breeze with the provided kit. Great tuning options to allow for best possible sound. This was put into a 2004 Ralliart with the 6 speaker infinity system stock. Since my car has all four speakers powered by the infinity amp I had to purchase a different connector, fortunately this is hardly a setback.

Other thoughts: the low frequency crossover cannot be disabled, as a result the bass from this deck doesn't hit as hard as the stock one. In most vehicles that's a good thing but in mine it wasn't, but hey that's what under-seat sub boxes are for right?

Awesome Replacement

I have no complaints about this product. There are many features to customize the sound and display of this head unit. I am extremely happy with my purchase. The main reason i was drawn to this headhunt was because it allows Ipod control. If i ever have to replace a stock head unit I will go straight back to this one.

Quality Stereo

Written By frankez, Bossier City, LA on Thursday, January 24, 2013

"Coolness Factor"

Build Quality

Ease of Use

Sound Quality

Value

Amazing upgrade over my stock Monsoon tape (yes, that's embarrassing) deck w/10 cd changer. Don't know why GM would put a tape deck in a 2001 Camaro SS, but I digress. This Sony unit is an amazing value, sounds great, and is easy to install. It has totally revived my stock speakers to the point it almost sounds like I replaced the speakers as well! I love the color customization and the USB/iPod interface. Great stereo, you won't be disappointed.

Great Radio

I bought this radio for my husband's truck so he could use his new IPod. Crutchfield included everything that he needed to quickly remove the existing radio and install the new one. Sounds and looks great. Thanks for always including everything down to the smallest detail!

Buy one

Great Stereo, sound, and looks. This is the third one I've bought for different cars that we have had over a couple of years. Never have had any problems. It puts out great sound and looks very nice. Not much more that I can say about it. Try it, you'll like it.

Pros:Price, Sound, looks, quality, ease of use.

Cons:Have to read the instructions to menu through the features. Not really a con though is it? Easy to understand...

Good value

This is an excellent component. It has all the features I wanted at an affordable price. It was easy to install and has fine tunability with the equalizer. It produces excellent sound quality. I would recommend this unit.

Cons:Controls are not intuitive. This gadget requires study of the manual to operate, so it is impossible for someone who doesn't know the unit to operate it. It also means that it is dangerous to operate while driving, what with all the inconsiderate drivers on the roads. The website claims it fits the cars I purchased it for, but not without the 1 inch spacer that makes it protrude from the instrument panel. It looks like a psychedelic wart sticking out there, scrolling through those 35000 colors.

Disappointing for a SONY

Written By David40, St Pete, FL on Sunday, December 09, 2012

"Coolness Factor"

Build Quality

Ease of Use

Sound Quality

Value

I bought this unit primarily for playing mp3's through the usb port in the front. Mp3's play with horrible distortion through the port. I thought I had blown speakers but then it sounds great if I play the radio. I'll be looking to try a different brand.

Pros:Looks great and has a ton of nice features.

Cons:Good looks and cool features are meaningless it the sound is bad.

Almost

Installed in my wife's car. Installation went smooth all THREE times I did it. I installed three times because I thought I had messed something up. When lowering the faceplate to use the CD the main knob hits the trim and barely lowers enough for clearance to insert a CD. You have to contort your hand/fingers to push the button to eject the CD. I didn't mess up, just poor design. And don't even try remove and put the faceplate back on, incredibly hard to align just right.

Sony CDX-GT660UP

I have this receiver installed in a 2000 S10 truck powering 5 1/4" Focal Polyglass speakers in all four speaker locations and it's an amazing leap from the factory sound system. I am planning on running an external amp to really bring the Focals to life. It gives me complete control over tweaking the sound from the subwoofer to the speakers. The only real complaint I have about it is the control over my iPhone (although this could be due to the decline of quality of Apple software recently) When listening to a certain playlist or certain artist through my headphones, I get into my truck and plug it in and keep listening to the same song but when I try to change the song, the receiver pauses for about a second or two and starts playing the first album, alphabetically, on my iPhone. This makes it so I have to search on the receiver to get back to the music I was originally listening to which gets old pretty quickly. Also, if you have 'shuffle' activated on the iPhone then you can't shut it off from the receiver, you have to unplug the iPhone and turn off Shuffle then plug it back in...Which brings you right back to having to search through the receiver to get back to your music again! Overall it's a great value and is built well and of course customer service from Crutchfield was amazing as always!

Second one

Really like this radio. So much so that I purchased a second one after putting on in a 200 Jetta. The new one went in a 2005 Trailblazer. Crutchfield sent everything I needed. The Onstar adapter went in with little difficulty. Plenty of room going from Double DIN to single. Forgot to adjust the chimes before putting the dashboard back together.

Pros:Easy install, radio plays just about every media source out there. Color choices.

Cons:not enough power. Vehicle adapter should have had a tray for a phone or Ipod.

Great Product with Awesome Receptionb

Needed a receiver that had the following requirements: RDS, Aux Input, IPOD Control, Low FM sensitivity and direct access to the preset stations by buttons. I initially wanted BT so I went with the Pioneer DEH-6400BT. The first thing I noticed was that the display was hard to read and the reception left something to be desired. I also found that I was not able to answer BT calls. I switched to the Sony-MEX-BT4000P. The reception was great, the display was easy to read but I was still unable to answer BT calls. This is what happens when you have an old phone. So realizing that I didn't need the BT functionality I stepped down to the Sony CDX-GT660UP. The radio has ALL of the same features of the Sony-MEX-BT4000P EXCEPT the BT. I couldn't be happier. The reception is superb. Where I had trouble getting stations in other radios, this one brings them in crystal clear. The unit is easy to read and has all of the functions I desire. The only complaints I have are with the user interface. While it is a bit confusing (i.e. you hit the BIG button to get to the menus, but a very small button to turn the unit off) it is not a deal killer. Overall I am very happy with this receiver. If you don't need BT, this is a great choice. If you do, the go with the Sony-MEX-BT4000P. You won't be disappointed.

Sony CDX-GT660UP

I installed this receiver to replace the factory unit in a 1999 Jeep Wrangler. Everything exceeded my expectations. It what easy to install, looks great, sounds great and was reasonably priced. I recommend it heartily!

Pros:As above, sounds great, easy to install, looks great.

Cons:I'm old enough where I don't want to learn a bunch of new things. The receiver has so many features and functions it can seem overwhelming.